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Words near each other
・ NGC 4984
・ NGC 5
・ NGC 50
・ NGC 5001
・ NGC 5005
・ NGC 5010
・ NGC 5023
・ NGC 5033
・ NGC 5034
・ NGC 5068
・ NGC 5078
・ NGC 5087
・ NGC 5090 and NGC 5091
・ NGC 51
・ NGC 5101
NGC 5102
・ NGC 5112
・ NGC 514
・ NGC 5144
・ NGC 5161
・ NGC 5164
・ NGC 5170
・ NGC 5177
・ NGC 518
・ NGC 5189
・ NGC 5195
・ NGC 52
・ NGC 520
・ NGC 5204
・ NGC 5223


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NGC 5102 : ウィキペディア英語版
NGC 5102

NGC 5102 is a galaxy in the M83 group of galaxies. It was discovered by John Herschel in 1835.
==Distance measurements==

At least two techniques have been used to measure distances to NGC 5102. The surface brightness fluctuations distance measurement technique estimates distances to spiral galaxies based on the graininess of the appearance of their bulges. The distance measured to NGC 5102 using this technique is 13.0 ± 0.8 Mly (4.0 ± 0.2 Mpc). However, NGC 5102 is close enough that the tip of the red giant branch (TRGB) method may be used to estimate its distance. The estimated distance to NGC 5102 using this technique is 11.1 ± 1.3 Mly (3.40 ± 0.39 Mpc). Averaged together, these distance measurements give a distance estimate of 12.1 ± 0.7 Mly (3.70 ± 0.23 Mpc).〔average(4.0 ± 0.2, 3.40 ± 0.39) = ((870 + 760) / 2) ± ((602 + 802)0.5 / 2) = 820 ± 50〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「NGC 5102」の詳細全文を読む



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